Likely a Bavarian depot then. Explains the bolt!Nothing else on the butt plate I can see.
The striker assembly gives me pause, but I think the body is Ok.It’s a great rifle! Though, I suspect the bolt has been humped. The font looks off and the small bolt components weren’t renumbered 99% of the time. I leave 1% open because anything is possible. With that said, I’ve never personally seen it and would expect small components to take the form of an overstamp rather than grinding. Again great rifle, the remainder looks righteous, I just think the font is suspect.
The c/J on the stock disk is related to a Spandau inspector from around 1903. The inspection team that used J isn’t observed at Amberg until the early part of 1917, as is the case with the donor bolt. In fact, if the OP shows the sleeve facing side of the bolt root, the exact month it was made can be discerned. Moreover, inspectors with surnames that began with J are prevalent throughout the ordnance system; Amberg, Mauser, Spandau, and Pieper all had teams represented by J at some point.The J inspector proof is on bavarian bolt and on disc, is the buttstock serialed same way also 3543d ? I would prefer remain already by this configuration as the bolt was force matched and the serial font doesnt look new date. Different font of serial is on front ring, which was probably replaced too.
Cyrus is right, imo, maybe not absolute but certainly as to justification of suspicion. I find the bolt suspicious also, though hesitate to certainty. Barrel fit trends well...I’d argue that the bolt body is not legit depot. If the buttplate had a depot number or the wrist a Bavarian acceptance mark I’d say it’s plausible, but the font is too consistent with the obviously fraudulent striker assembly. The new numbers are overstruck, which is a depot practice, but the font doesn’t match known examples, like the 1915 Danzig Jory recently posted.
Were it mine I would swap the bolt. Overall a damn fine early Gew with a neat unit mark.
OK, a question for those of you who know the depot rifles:I dunno, I could see the bolt being legit. Mostly because if it's a fake it's one of the sloppiest fakes I've seen in a while, especially the striker assembly. Fakers care a lot more about clean markings and not leaving traces of the original SN than the WW1 depots ever did.
That said, I don't know Bavarian depot work so if it's wildly inconsistent with what others have observed I'll defer.
On the suffix, most of the time, no. But there are also examples with a fully scrubbed bolt. Rastatt rifles almost always seem to have the old suffix. It just depends..each depot had their own quirks but didn't always follow them either because clear exceptions exist.OK, a question for those of you who know the depot rifles:
Did they obliterate the old suffix when they did the work? Because the receiver is a d-block, but the bolt root is an e-block. If I was faking a rifle there's no way I'd leave that little detail alone, but I could see a wartime depot not really caring.